15. Light/Lock — Press to activate the Backlight. Press and hold to lock the Keypad.
16. Battery Connection Area and Battery Recharging Contacts— Install the supplied Lithium Ion Rechargeable Battery being sure to position the pack as shown in the section Batteries. To recharge the installed Lithium Ion battery, place the MHS450 into the Charger Cradle. The contacts at the bottom edge of the radio receive the required voltage and current from the cradle to completely recharge the battery in about 4 hours.
17. Battery Latch — Lift the latch to remove and replace the
18. MIC — Speak clearly into the microphone aperture when transmitting for best results. Position the mic at least 4 inches from your mouth.
Radio Charger Cradle
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19. Front Charging Indicator — Lights during battery charging and goes off when the battery is fully charged. If a fully charged battery is placed in the cradle, the LED does not light and no charging takes place. While you can monitor incoming calls while the radio is in the charger, do not attempt to transmit while it is in the cradle.
20. DC Input Jack — Connect the AC adapter then plug the adapter into a standard 120/240V AC outlet. The DC adapter connects to a vessel’s 12V socket and this jack.
21. Charging Latch — Holds the radio in place when you insert it into the cradle.
18 | Uniden MHS450 Radio Owner’s Manual |